Coffee-roaster.



L. BREYER.

COFFEE ROASTER. APPLIOA'HON FILED APR.26,1909.

Patenti-)(1 Spt. 14, 1909.

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L. BREYER.

COFFEE RoAsTER.

APPLICATION FILED ABB.. 281909.

QMJST Patented sept. 14,1909.

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LOUI'S BREYER, 0F PHILADELPHIA, PENNSYLVANIA.

COFFEE-ROASTER.

Specification of Letters Patent.

hatentetll ldept. '14, 1.905).

Application filed April 28, 1909. Serial N0. 492,739.

To all whom 'it may concern.'

lle it known that I', Loris Bui-ivan,

citizen of the United States, residing at Philadelphia. in the county of lhiladelphiai and State of Pennsylvania, have invented i l which lat/ter is located in an openingl l5 in 60 front plate 1.

certain new and useful In'xprovements in (fottere-Roasters. of which the following is a specification.

My invention relates to an improved coffee roaster, an object of the invention being' to provide an improved cotfeeroasting cylinder. which will allow for expansion and contraction of the coffee during `the roastingI operation. and which will automatically adjustI itself to suit conditions.

A further object is to provide a`n improved cott'ee rooster. which can be knocked down and readily transpm'ted from place to place, which will not require skilled labor to assemble. and which will be to a certain extent portable. .f

lYith these and other objects in view, the invention consists in certain novel features of construction, and combinations, and arrangements of parts as-will be more fully hereinafter described andpointed out in the claims. f

ln the accompanying drawings, /Figure l, is a view in elevation of one end of' the coffee roaster. Figa'. it is a view in cross section. Fig'. a fragmentary view of the opposite end of the roaster. Fig, t, is a vi'ew in lon- ,g'itudinal section. Fig. 5, is a fragmentary detail view in section through the head, and Fig. is an enlarged fragmentary view in longitudinal section. I

vl and Q represent the ends of the roastjcr, and comprise meta-l plates or castings, provided at their lopposed Ifaces with parallel ribs 3, between which parallel metal plates 4 and 5 are positione as clearly shown in Fig. (i, and rods 6 rre passed through alined openings in the plates l and 2, and extend throughout the roftster between the plates 4 and 5, and are securely clamped by means of nuts 7 screwed on o thc ends of the rods and against the plates l and 2. the roaster casing beingy effe'etually clamped together. These plates 4 and are of the general shape shown in I `ig2,.and provide a space or hollow wall to -belled with sand 8 or othery suit-able Inagreatest: possible heat which is preferablyv of wire netting, and secured at one end is a head 10, they latter keyed upon a shaft. l1. 'lhis yshaft 1t is mounted in a bearing 12 in the back plate 2, and in a bearing 13 in the cylinder head 1l,

A beveled pinion lt is secured on shaft ll. and is driven by a pinion 1T on the shaft 18. Which latter receives its power from any suitable source.

The forward end oll cylinder t) is provided with a ring 19. and an inwardly projecting Harige 2t) on head 1T', projects into this ring. so as to close the end of the cylinder. and allow the head lst considerable movement on the shaft ll without allowingl any of the coffee toescape from the cylinder. 'lhis head l-t-is provided with perforated tongues 2t projecting* over the plate 1, and bolts 22 are screwed into plate l, aud secured by nuts 23. These bolts '.22 project throu, hl the perforated tongues :2.1, and are provided with cap washers 24 and nuts 25 at their outer' ends, and coiled springs 26 surround the halts 22 and are disposed between the tongues 80 2l and washers 2t to exert pressure on the head 14. and normally hold the tong-ues 2l against the plate l. The head 14 is provided with a feed hopper 27, (,'ommunicating;` with an opening' Q8 in the head, to permit 85 the coffee to be supplied to the cylinder. and an outlet door 2S) is provided above the spoilt.' 30, so as to direct the discharge of coffee from the cylinder.

31 represents a bottom plate, which is se- 90 curely bolted to the lower iang'ed ends 32 of plates 1 and 2, and a fire bricltback wall 33 is located. upon the bottom plate- '3'., and against the back plate 2, and supports grate bars 34 and a partition 35, the latter serving 95 as a bottoi'n for the ashpit, and providing' an air space b'etWe/en the bottom of theashpit and the bottom plate 3l, to prevent the trans.. mission of heat to the floor.

'lhe'do'ors 36 provide access to the fire box, 100

and an ashpit door 37 is provided as shown.

to enable the ashes to be readily removed from -the ashpit. and 38 represents a stach which projects through an opening in outer plate 4, and is secured to the inner plate .3

Am register with an opening' in the latter. so

as to permit the escape of smoke and ,eases from the ,roasten 1 The head is keyed on sh'aft ll, and can f move on the shaft, the wire netting of which f;

I claim as newA and desire to secure by Letters Patent is:

l. In a codec roaster, the combination'with a cylinder, a fixed plate having an opening therein, a head loose in the cylinder-and located in the opening in the fixed plate, and

elastic means at the edges only of said head exerting pressure on the head toelastically praias the same toward the cylinder.

2. In a coffee roaster, the combination with a cylinder, of a fixed plate having an opening therein, of a cylinder head located in said opening, a flange on said cylinder head projecting into the cylinder, tongues on said the cylinder is formed will permit a wide,` head overlapping the plate, and springs range of contraction and expansion withoutgjt damage, and the head lele which. is elasticalljil'l held against plate l by means of the springs Qt, can move outwardly and inwardly a considerable distance, sufficient to compensate for any expansion and contraction which might occur. l lt will thus be observed that I haveprol vided a coffee roaster, which will absolutely i prevent injury, due to the expansion and' contraction, and I have also provided a cofi fee roaster which can be readily taken apart and .assembled by any one of average in`- telligence, and does not' require skilled labor i of anykind. The roaster can be made of various sizes, and @an be supplied to the trade at a minimum of cost` and will most effectually perform its function as a' coffee roaster. t e x Various slight changes' might be made in the general form and arrangement of parts i described without departing from my invention, vand hence I do not restrict myself to the'precise details set forth, but consider myself at liberty to make such changes and alterations as fairly fall Within the `spirit and scope of the claims.

' Having thus described my invention What f name to this specification in the pressing said tongues toward the plate.

` 3. I n a coffee roaster, the combination with a `eylinder, of a fixed plate having an opening therein, a cylinder head located in said opening in the plate, a flange on said head projecting into the cylinder, perforated I tongueson said head overlapping the plate,

bolts. secured in said plate and projecting through the perforations in said tongues,

t nuts on said bolts, and coiled springs around said bolts between said nuts and the tongues.

4. In a coffee roaster, the combination With a Wire screen cylinder, a head secured to said screen, a movable head at the other end of the cylinder, `elastic means at the edges only of said movable head pressing the same toward the cylinder a shaft for turning said cylinder 'and projectingvthrough said heads,

and said first mentioned head keyed to said shaft.

In testimony whereof I have signed my presence of two subscribing Witnesses. y

LOUIS BREYER.

Witnesses: v

J. A. L. MULHALL, R. I-I. KRENKEL. 

